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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.32 by root, Wed Dec 27 05:32:26 2006 UTC vs.
Revision 1.47 by root, Sat Jun 9 22:54:03 2007 UTC

1/* 1/*
2 CrossFire, A Multiplayer game for X-windows 2 * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game.
3 3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
4 Copyright (C) 2001 Mark Wedel 5 * Copyright (©) 2001,2007 Mark Wedel
5 Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
6 7 *
7 This program is free software; you can redistribute it and/or modify 8 * Crossfire TRT is free software; you can redistribute it and/or modify it
8 it under the terms of the GNU General Public License as published by 9 * under the terms of the GNU General Public License as published by the Free
9 the Free Software Foundation; either version 2 of the License, or 10 * Software Foundation; either version 2 of the License, or (at your option)
10 (at your option) any later version. 11 * any later version.
11 12 *
12 This program is distributed in the hope that it will be useful, 13 * This program is distributed in the hope that it will be useful, but
13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 GNU General Public License for more details. 16 * for more details.
16 17 *
17 You should have received a copy of the GNU General Public License 18 * You should have received a copy of the GNU General Public License along
18 along with this program; if not, write to the Free Software 19 * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 21 *
21 The author can be reached via e-mail to <crossfire@schmorp.de> 22 * The authors can be reached via e-mail to <crossfire@schmorp.de>
22*/ 23 */
23 24
24/** 25/**
25 * \file 26 * \file
26 * Socket general functions 27 * Socket general functions
27 * 28 *
… …
55 * client. 56 * client.
56 */ 57 */
57client::client (int fd, const char *peername) 58client::client (int fd, const char *peername)
58: fd (fd), host (strdup (peername)), 59: fd (fd), host (strdup (peername)),
59 socket_ev (this, &client::socket_cb), 60 socket_ev (this, &client::socket_cb),
60 cmd_ev (this, &client::cmd_cb), 61 cmd_ev (this, &client::cmd_cb)
61 cc_inv (this), cc_other (this)
62{ 62{
63 refcnt_inc (); // the socket is an external reference
64
65 mss = 1500 - 52; // 1500 typical ethernet frame, 66 typical tcp header overhead
66
63 { 67 {
64 struct linger linger_opt; 68 struct linger linger_opt;
65 69
66 linger_opt.l_onoff = 0; 70 linger_opt.l_onoff = 0;
67 linger_opt.l_linger = 0; 71 linger_opt.l_linger = 0;
68 72
69 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) 73 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
70 LOG (llevError, "SO_LINGER: %s\n", strerror (errno)); 74 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
71 } 75 }
72 76
73 { 77 {
78 int val;
79
80#ifdef IP_TOS
74 int val = IPTOS_LOWDELAY; 81 val = IPTOS_LOWDELAY;
75
76 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val))) 82 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
77 LOG (llevError, "IP_TOS: %s\n", strerror (errno)); 83 LOG (llevError, "IP_TOS: %s\n", strerror (errno));
78 } 84#endif
79 85
80 { 86#ifdef TCP_NODELAY
81 int val = 1; 87 val = 1;
82
83 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val))) 88 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val)))
84 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno)); 89 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno));
90#endif
91
92 // set some very aggressive keepalive parameters
93#ifdef TCP_KEEPIDLE
94 val = 1;
95 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
96 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
97#endif
98
99#ifdef TCP_KEEPCNT
100 val = 3;
101 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
102 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
103#endif
104
105#ifdef TCP_KEEPINTVL
106 val = 1;
107 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
108 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
109#endif
110
111 // try to find the mss value in use
112#ifdef TCP_MAXSEG
113 socklen_t sl = sizeof (val);
114 if (!getsockopt (fd, IPPROTO_TCP, TCP_MAXSEG, &val, &sl) && sl == sizeof (val))
115 mss = val;
116#endif
85 } 117 }
86
87#ifdef __linux__
88 {
89 int val;
90
91 // set some very aggressive keepalive parameters
92 val = 10;
93 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
94 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
95
96 val = 5;
97 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
98 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
99
100 val = 1;
101 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
102 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
103 }
104#endif
105 118
106 { 119 {
107 int bufsize = 65535; /*Supposed absolute upper limit */ 120 int bufsize = 65535; /*Supposed absolute upper limit */
108 int oldbufsize; 121 int oldbufsize;
109 int buflen = sizeof (int); 122 int buflen = sizeof (int);
… …
126 mapmode = Map0Cmd; 139 mapmode = Map0Cmd;
127 darkness = 1; 140 darkness = 1;
128 mapx = 11; 141 mapx = 11;
129 mapy = 11; 142 mapy = 11;
130 itemcmd = 1; /* Default is version item1 command */ 143 itemcmd = 1; /* Default is version item1 command */
131 144 max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default
132 faces_sent = salloc0<uint8> (nrofpixmaps);
133 145
134 /* Do this so we don't send a face command for the client for 146 /* Do this so we don't send a face command for the client for
135 * this face. Face 0 is sent to the client to say clear 147 * this face. Face 0 is sent to the client to say clear
136 * face information. 148 * face information.
137 */ 149 */
138 faces_sent[0] = NS_FACESENT_FACE; 150 faces_sent[0] = true;
139 151
140 // socket I/O is low priority
141 // we prefer to have the server run instead of handling client requests
142 socket_ev.prio (PE_PRIO_NORMAL + 1); 152 socket_ev.prio (PE_PRIO_NORMAL);
143 socket_ev.fd (fd); 153 socket_ev.fd (fd);
144 socket_ev.poll (PE_R); 154 socket_ev.poll (PE_R);
145 155
146 // command handling is even lower priority
147 // that way no client can monopolise the server
148 cmd_ev.prio (PE_PRIO_NORMAL + 2); 156 cmd_ev.prio (PE_PRIO_NORMAL);
149 157
150 // initialisation done, kick it! 158 // initialisation done, kick it!
151 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); 159 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
152 flush (); 160 flush ();
153 161
154 // clients are externally referenced by the socket 162 reset_stats ();
155 refcnt_inc ();
156 clients.push_back (this);
157 163
158#if 0//TODO 164 clients.insert (this);
159 socket_info.nconns++;
160 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns;
161 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns;
162#endif
163} 165}
164 166
165client::~client () 167client::~client ()
166{ 168{
167 sockvec::iterator i = find (clients.begin (), clients.end (), this);
168 if (i != clients.end ())
169 clients.erase (i); 169 clients.erase (this);
170 170
171 sfree<uint8> (faces_sent, nrofpixmaps);
172 free (stats.range); 171 free (stats.range);
173 free (stats.title); 172 free (stats.title);
174 free (host); 173 free (host);
175} 174}
176 175
… …
181 180
182 if (pl) 181 if (pl)
183 pl->disconnect (); 182 pl->disconnect ();
184 183
185 if (fd >= 0) 184 if (fd >= 0)
185 {
186 send_packet ("goodbye");
187 flush ();
188
186 close (fd); 189 close (fd);
190 }
187 191
188 state = ST_DEAD; 192 state = ST_DEAD;
189 193
190 socket_ev.suspend (); 194 socket_ev.suspend ();
191 cmd_ev.suspend (); 195 cmd_ev.suspend ();
192 196
193 // socket now longer references us 197 refcnt_dec (); // socket no longer open
194 refcnt_dec ();
195} 198}
196 199
197/** This sets up the socket and reads all the image information into memory. */
198void 200void
199init_ericserver (void) 201client::reset_stats ()
200{ 202{
201 cst_tot.time_start = time (NULL); 203 /* we need to clear these to -1 and not zero - otherwise,
202 cst_lst.time_start = time (NULL); 204 * if a player quits and starts a new character, we wont
205 * send new values to the client, as things like exp start
206 * at zero.
207 */
208 for (int i = 0; i < NUM_SKILLS; i++)
209 last_skill_exp[i] = -1;
203 210
204 LOG (llevDebug, "Initialize new client/server data\n"); 211 for (int i = 0; i < NROFATTACKS; i++)
212 last_resist[i] = -1;
205 213
206 read_client_images (); 214 last_weapon_sp = -1;
207} 215 last_level = -1;
216 last_stats.exp = -1;
217 last_weight = (uint32) - 1;
218 last_flags = 0;
219 last_weight = 0;
220 last_weight_limit = 0;
221 last_path_attuned = 0;
222 last_path_repelled = 0;
223 last_path_denied = 0;
224 last_speed = 0;
225 last_flags = 0;
208 226
227 static living zero_living;
228 last_stats = zero_living;
229}
209 230
210/******************************************************************************* 231/*******************************************************************************
211 * 232 *
212 * Start of functions dealing with freeing of the data. 233 * Start of functions dealing with freeing of the data.
213 * 234 *
… …
222} 243}
223 244
224client * 245client *
225client::create (int fd, const char *peername) 246client::create (int fd, const char *peername)
226{ 247{
227 if (checkbanned (NULL, peername))
228 {
229 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
230 return 0;
231 }
232 else
233 {
234 client *ns = new client (dup (fd), peername); 248 client *ns = new client (dup (fd), peername);
235
236 ns->instantiate (); // effectively a nop right now 249 ns->instantiate (); // effectively a nop right now
237
238 INVOKE_CLIENT (CONNECT, ns); 250 INVOKE_CLIENT (CONNECT, ns);
239
240 return ns; 251 return ns;
241 }
242} 252}
243 253

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